hi_class: Horndeski in the Cosmic Linear Anisotropy Solving System

被引：134

作者：

Zumalacarregui, Miguel ^{[1
,2
,3
,4
,5
]}

Bellini, Emilio ^{[6
,7
]}

Sawicki, Ignacy ^{[8
]}

Lesgourgues, Julien ^{[9
]}

Ferreira, Pedro G. ^{[7
]}

机构：

[1] KHT Royal Inst Technol, NORDITA, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden

[2] Stockholm Univ, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden

[3] LBL, Berkeley Ctr Cosmol Phys, Berkeley, CA 94720 USA

[4] Univ Calif Berkeley, Berkeley, CA 94720 USA

[5] Heidelberg Univ, Inst Theoret Phys, Philosophenweg 16, D-69120 Heidelberg, Germany

[6] Univ Barcelona, IEEC UB, Inst Ciences Cosmos, Marti i Franque 1, E-08028 Barcelona, Spain

[7] Univ Oxford, Astrophys, Denys Wilkinson Bldg,Keble Rd, Oxford OX1 3RH, England

[8] Fyzikalni Ustav Akad Ved CR, Cent European Inst Cosmol & Fundamental Phys, Na Slovance 2, Prague 18221 8, Czech Republic

[9] Rhein Westfal TH Aachen, Inst Theoret Teilchenphys & Kosmol, D-52056 Aachen, Germany

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2017年 / 08期

基金：

欧盟地平线“2020”; 欧洲研究理事会;

关键词：

modified gravity; dark energy theory; cosmological parameters from CMBR; cosmological parameters from LSS; MODIFIED GRAVITY; ART; COSMOLOGY; SPEED; TESTS;

D O I：

10.1088/1475-7516/2017/08/019

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the public version of hi cl a ss (www . hiclass-code . net), an extension of the Boltzmann code CLASS to a broad ensemble of modifications to general relativity. In particular, hi cl a ss can calculate predictions for models based on Horndeski's theory, which is the most general scalar-tensor theory described by second-order equations of motion and encompasses any perfect-fluid dark energy, quintessence, Brans-Dicke, f( R) and covariant Galileon models. hi-class has been thoroughly tested and can be readily used to understand the impact of alternative theories of gravity on linear structure formation as well as for cosmological parameter extraction.

引用

页数：29

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